Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Heads up on leupold scopes (MOA vs IPHY)
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Hired Gun" data-source="post: 682454" data-attributes="member: 1290"><p>I have a friend, now retired, who was an engineer at Leupold. He states that since day one the sporting scopes were set up to adjust in MOA. It is the only internationally accepted unit of angular measurement. The mil adjustments came latter.</p><p></p><p>Just guessing the tech line guys have very limited knowledge to do their jobs. That is to determine if your scope is broken or to read the manual to us over the phone.</p><p></p><p>Something to consider.</p><p>Assuming one of the least likely choices for long range hunting but still used. The 308 Win using 168 grain FGMM ammo.</p><p></p><p>Exbal</p><p>States:</p><p>At 500 yards 12.5 MOA x 1.0472 x 5 = 65.45" drop</p><p>IPHY 12.5 x1" x 5 = 62.5" drop. 2.95 inches of drop difference.</p><p>Not much on big game.</p><p> </p><p>At 1000 is states correction in MOA to get to 1000 yards is 41.5 MOA x 1.0472" = 43.4588" elevation x 10 = 434.59 inches of drop</p><p>If you used 41.5 IPHY x 1" x10 = 415" drop</p><p>This makes a drop difference is of 1.9588" x 10 = 19.5" drop difference.</p><p>On a .308 Win. At 1000 yards this is a 19.5" difference in drop. Enough to cause a big miss. On a flatter shooting gun it's much less.</p><p> </p><p>Reason for correction.</p><p>Corrected my math.</p></blockquote><p></p>
[QUOTE="Hired Gun, post: 682454, member: 1290"] I have a friend, now retired, who was an engineer at Leupold. He states that since day one the sporting scopes were set up to adjust in MOA. It is the only internationally accepted unit of angular measurement. The mil adjustments came latter. Just guessing the tech line guys have very limited knowledge to do their jobs. That is to determine if your scope is broken or to read the manual to us over the phone. Something to consider. Assuming one of the least likely choices for long range hunting but still used. The 308 Win using 168 grain FGMM ammo. Exbal States: At 500 yards 12.5 MOA x 1.0472 x 5 = 65.45” drop IPHY 12.5 x1” x 5 = 62.5” drop. 2.95 inches of drop difference. Not much on big game. At 1000 is states correction in MOA to get to 1000 yards is 41.5 MOA x 1.0472" = 43.4588" elevation x 10 = 434.59 inches of drop If you used 41.5 IPHY x 1” x10 = 415” drop This makes a drop difference is of 1.9588" x 10 = 19.5” drop difference. On a .308 Win. At 1000 yards this is a 19.5” difference in drop. Enough to cause a big miss. On a flatter shooting gun it’s much less. Reason for correction. Corrected my math. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Heads up on leupold scopes (MOA vs IPHY)
Top